import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login'
import Home from '../components/Home'

Vue.use(Router)

const router= new Router({
  routes: [
    
    {
      path: '/login',
      name: 'Login',
      component: Login
    },
    {
      path: '/',
      name: 'Login',
      redirect:"/login"
    },
    {
      path: '/home',
      name: 'Home',
      component:Home
    }
  ]
})
//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to 将要访问的路径
  //from 代表从哪个路径跳转而来
  //next 是一个函数 表示方行
  if(to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})

export default router